Structural defects of monolayer wet particles during melting under vertical vibration

The evolution of structural defects during phase transition is of great significance to the understanding of the mechanism of solid-liquid transition. However, the current research on topological defects still uses the pair-correlation function and the orientational order correlation function, so it is difficult to quantify the detailed changes of structural defects locally. In this paper, the local volume fraction is proposed as a key parameter to accurately quantify the variation of structural defects. The experimental results indicate that the evolution of structural defects in the particle system is caused by the decrease of local volume fraction, so the critical value of phase transition could be determined by the minimum local volume fraction phi(min). Furthermore, according to the evolution law of structural defects, it can be deduced that the phase transition is continuous, which is consistent with the Kosterlitz-Thouless-Halperin-Nelson-Young theory. Therefore, the quantitative analysis of structural defects by using local volume fraction can help make the mechanism of solid-liquid phase transformation clearer.

Automated summary

The evolution of structural defects during phase transition plays a significant role in understanding the mechanism of solid-liquid transition. However, current research on topological defects lacks an accurate method to quantify the local changes of structural defects. This paper proposes the use of local volume fraction as a key parameter to accurately quantify the variation of structural defects. The experimental results show that the evolution of structural defects in the particle system is caused by the decrease of local volume fraction, and the critical value of phase transition can be determined by the minimum local volume fraction phi(min). Furthermore, the evolution law of structural defects suggests that the phase transition is continuous, consistent with Kosterlitz-Thouless-Halperin-Nelson-Young theory. Therefore, the quantitative analysis of structural defects using local volume fraction can provide a clearer understanding of the mechanism of solid-liquid phase transition.